objective-c

问题 I am using WKWebview (iOS 9) to load https://self-signed.badssl.com/ While as a delegate didReceiveAuthenticationChallenge is getting called, I'm receiving incomplete protectionSpace details e.g. host is null & authenticationMethod is NSURLAuthenticationMethodDefault (it should be NSURLAuthenticationMethodServerTrust ) po challenge.protectionSpace <NSURLProtectionSpace: 0x7ff30c40fb90>: Host:(null), Server:http, Auth-Scheme:NSURLAuthenticationMethodDefault, Realm:(null), Port:0, Proxy:NO,

问题 I am using WKWebview (iOS 9) to load https://self-signed.badssl.com/ While as a delegate didReceiveAuthenticationChallenge is getting called, I'm receiving incomplete protectionSpace details e.g. host is null & authenticationMethod is NSURLAuthenticationMethodDefault (it should be NSURLAuthenticationMethodServerTrust ) po challenge.protectionSpace <NSURLProtectionSpace: 0x7ff30c40fb90>: Host:(null), Server:http, Auth-Scheme:NSURLAuthenticationMethodDefault, Realm:(null), Port:0, Proxy:NO,

问题 OK, the question is fairly straightforward. I have a sandboxed OSX app. I want the user to be able to compile some C code (whatever he inputs). But whenever I'm attempting a call to: /usr/bin/env clang /the/path/to/the/source.c I'm getting the following error in the logs: xcrun: error: cannot be used within an App Sandbox. Is there any way to circumvent this? P.S. I've successfully done pretty much the same thing with Ruby, Python and PHP. 回答1: If you want to keep your app sandboxed you could

问题 So I have 2 UIViews witch can draw a bezierpath and then returns the path. Then I need to check if the path contains a point I do this with help of [path containsPoint:currentObject.position] and it works for one of the views but not the other. One view is on the top half of the iPhone and the other view is on the bottom half. The one on the bottom don't work. I tried to switch the views, and then it was the same problem, the bottom one doesn't work. Here is some code: in mainviewcontroller:

问题 I can't seem to figure out how to programmatically set a new image, via the outlet, and make it start animating. Sequence zeroEntering0.png zeroEntering1.png zeroEntering2.png zeroEntering3.png zeroEntering4.png I imported the sequence of images into the Image.xcassets inside the WatchKit App I can set the image in the interface builder to "zeroEntering" and set animating to "Yes" and it works correctly. However, I want something more dynamic, I need a button press to choose a new animation

问题 I have created an NSTokenField in my xib. I'd like to display tokens with different colors inside that tokenField. Meaning: some tokens will be blue, the rest will be red (according to their content). Is that possible? The following code doesn't work for me. I hope someone can help me out: - (id)tokenField:(NSTokenField *)tokenField representedObjectForEditingString:(NSString *)editingString { id returnRepresentedObject = nil; NSTokenFieldCell *tf = [[NSTokenFieldCell alloc] init]; tf

问题 Based on this issue about using NSString formatting I try to implement multiplatform implementation for formatting when using vararg , with no luck so far. What I did added FoundationInterop.def language = Objective-C --- #import <Foundation/NSString.h> NSString* format(NSString* format, ...) { va_list args; va_start(args, format); NSString* result = [[NSString alloc] initWithFormat:format arguments:args]; va_end(args); return result; } compiled it in gradle targets { final def iOSTarget =

问题 I have an insert statement for my sqlite table that contains apostrophes in the values. NSString *sqlInsert = [NSString stringWithFormat:@"insert into myTable (_id, name, area, title, description, url) VALUES (%i, '%@', '%@', '%@', '%@', '%@')", tempObject.ID, tempObject.name, tempObject.area, tempObject.title, tempObject.description, tempObject.url]; The results of that string is this insert into myTable (_id, name, area, title, description, url) VALUES (0, 'John Smith', 'USA', 'Programmer',

问题 How can I draw a series of IOSurfaces to another then draw it to the screen? I've played around with some source from apple in the MultiGPU sample project, but the best I managed to do is draw a white screen or get tons of artifacts and crash the app. I'm very new to openGL and I don't quite understand the binding of framebuffers and textures and how they interact with IOSurfaces. This is what I have to create a texture from an IOSurface (directly from Apple's source) // Create an IOSurface

问题 I'm using a NSToolbar and I'm trying to change the color to a white instead of the default gray. How can I accomplish that? 回答1: Since the toolbar integrates into the window title bar, you need to draw both the title bar and the toolbar. Which basically means you need to take over drawing for the entire window. This requires "swizzling" which, while it works well, is not supported by Apple and therefore may get your app rejected from the app store. Basically you need to inject your own code